Gaya APA
Clark, J, O, E. (2010).
Buku Referensi : Seri Ensiklopedia IPA Physics Matters! Volume 8 Magnetism .
:
Grolier Educational.
Gaya MLA
Clark, John, O., E..
"Buku Referensi : Seri Ensiklopedia IPA Physics Matters! Volume 8 Magnetism".
:
Grolier Educational,
2010.
Text.